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[DOC File]Paper Reference(s) - Maths Tallis
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(a) Using a 5% level of significance, find the critical region for this test. The probability of rejecting either tail should be as close as possible to 2.5%. (3) (b) State the actual significance level of this test. (2) The actual value of x obtained is 3. (c) State a conclusion that can be drawn based on this value, giving a reason for your ...
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[DOC File]The reasoning of tests of significance
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The reasoning of tests of significance. Example 10.9. Diet colas use artificial sweeteners to avoid sugar. These sweeteners gradually lose their sweetness over time. Trained tasters sip the cola along with drinks of standard sweetness and score the cola on a “sweetness score” of 1 to 10. The cola is then stored for a …
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[DOC File]Statistics 300 - THS Mathematics Department
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Test this researcher’s claim at the= 0.01 level of significance. 36) A fast food outlet claims that the mean waiting time in line is less than 3.6 minutes. A random sample of 20 customers has a mean of 3.4 minutes with a standard deviation of 0.8 minute. If= 0.05, test the fast food outlet’s claim using P-values.
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[DOC File]St. John Fisher College
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Find the P-value for a left-tailed test with a test statistic of z = -2.23. Decide whether to reject H0 if the level of significance is α = 0.01. From the normal table z = -2.23 is P= 0.0129 which is the area in the left tail. Since 0.0129 > 0.01, you should fail to reject H0. Find the P-value for a two-tailed test with test statistic of z = 2.14.
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[DOC File]Test of Hypothesis One sample Test
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Test at the 0.01 significance level the claim that this method gives a couple greater than a 50% chance of having a boy. 11. A random selection of nine supermodels found that their average height was 70.2 inches with a standard deviation of 1.5 inches. Use a 0.05 level of significance to test the claim that on average supermodels is taller than ...
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[DOCX File]Obtaining Exact Significance Levels With SAS
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Obtaining Exact Significance Levels With SPSS. It is so easy to obtain exact significance levels with SPSS, that I shall expect you to obtain exact . p' s for all tests of statistical significance which you conduct using the normal curve, the binomial distribution, the Chi-square distribution, and the . t. and . F
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[DOC File]Exam 3 Practice Questions
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We will reject the null when the p-value is smaller than the significance level. The p-value . of this test is 0.044, which is smaller than the levels at .10, .05, but larger than .01. So we reject the H when =0.10 and .05, but fail to reject the null when =.01. 25. a. T. Since the population has a normal distribution, we can use the Normal ...
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[DOC File]Example SPSS Output for T-Test for Difference in Means
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To interpret the t-test results, all you need to find on the output is the p-value for the test. To do an hypothesis test at a specific alpha (significance) level, just compare the p-value on the output (labeled as a “Sig.” value on the SPSS output) to the chosen alpha level. Alternatively, you could just report the p-value, rather than ...
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[DOC File]Columbia University in the City of New York
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Use a 0.05 level of significance to determine whether there is evidence of a significant treatment effect (i.e., a significant difference in average surface hardness between the untreated and the polished steel plates) if the sample mean for the untreated plates is 163.4 and …
level of significance statistics calculator

How to find level of significance